Title:
SILVER INK FOR LOW-TEMPERATURE BURNING
Document Type and Number:
WIPO Patent Application WO/2020/045111
Kind Code:
A1
Abstract:
The present invention relates to a silver ink which comprises a dispersion medium and, dispersed therein, silver particles and a protective agent comprising one or more amine compounds. The dispersion medium of this silver ink comprises, as a main solvent, a solvent having a vapor pressure at 20°C of 40 mmHg or less and a vapor pressure at 70°C of 0.09 mmHg or greater. The main solvent is contained in an amount of 80 mass% or larger with respect to the whole dispersion medium. The amine compounds serving as the protective agent have a mass-average molecular weight of 115 or less and the total amount of the amine compounds included in the protective agent is 1-14 parts by weight per 100 parts by weight of the silver particles. The silver ink of the present invention is characterized by having a water content of 500-50,000 ppm. The silver ink according to the present invention can form practical metallic films even through burning at temperatures as low as 70°C or below.
Inventors:
OHSHIMA YUUSUKE (JP)
MAKITA YUICHI (JP)
SATO HIROKI (JP)
NAKAMURA NORIAKI (JP)
KOSHIJI KENJIRO (JP)
KASUGA MASATO (JP)
KUBO HITOSHI (JP)
MAKITA YUICHI (JP)
SATO HIROKI (JP)
NAKAMURA NORIAKI (JP)
KOSHIJI KENJIRO (JP)
KASUGA MASATO (JP)
KUBO HITOSHI (JP)
Application Number:
PCT/JP2019/032068
Publication Date:
March 05, 2020
Filing Date:
August 15, 2019
Export Citation:
Assignee:
TANAKA PRECIOUS METAL IND (JP)
International Classes:
C09D11/52; B22F1/00; B22F9/00; B22F9/30; B82Y30/00; H01B1/00; H01B1/22
Domestic Patent References:
| WO2014024630A1 | 2014-02-13 | |||
| WO2013115300A1 | 2013-08-08 | |||
| WO2017033911A1 | 2017-03-02 | |||
| WO2015129562A1 | 2015-09-03 | |||
| WO2016052292A1 | 2016-04-07 |
Foreign References:
| JP2016048601A | 2016-04-07 | |||
| JP2006169613A | 2006-06-29 |
Attorney, Agent or Firm:
TANAKA AND OKAZAKI (JP)
Download PDF: